International Journal of Irrigation and Water Management

International Journal of Irrigation and Water Management ISSN 5423-5294 Vol. 3 (1), pp. 001-009, January, 2016. © International Scholars Journals

Full Length Research Paper

Effect of different irrigation water level on cotton yield and yield components

Derya Onder¹ *, Yasar Akiscan², Sermet Onder¹ and Mehmet Mert²

¹Mustafa Kemal University, Faculty of Agriculture, Department of Agricultural Structures and Irrigation, 31034 Hatay –Turkey.

²Mustafa Kemal University, Faculty of Agriculture, Department of Field Crops, 31034 Hatay – Turkey.

Accepted 22 September, 2015

Abstract

Effects of different water level on yield and yield components of the drip irrigated cotton were evaluated in Amik Plain in the East Mediterranean Region of Turkey. Four levels of irrigation water were tested in 2003 and 2004. Treatments were 25 (I₂₅), 50 (I₅₀), 75% (I₇₅) of the full irrigation treatment (I₁₀₀) which received 100% class-A pan evaporation. Numbers of irrigation events were 5 and 8 in 2003 and 2004, respectively. Under I₂₅, I₅₀ and I₇₅ treatment conditions, evapotranspiration, total cotton seed yield, boll weight, lint percentage, number of sympodial branches and leaf area index decreased while some boll parameters such as boll weights and opened boll numbers increased. Increase of boll number per plant under water stress condition showed that cotton had high ability for adapting water stress conditions. The highest yield was obtained in the I₁₀₀ treatment. A second degree polynomial relation could adequately describe the cotton seed yield response to the irrigation water amount. The highest irrigation water use efficiency (IWUE) was obtained with the I₅₀ treatment.

Key words: Drip irrigation, seed yield, water use efficiency (WUE), cotton.

International Journal of Irrigation and Water Management ISSN 5423-5294 Vol. 2 (12), pp. 001-005, December, 2015. © International Scholars Journals

Full Length Research Paper

The response of Cyclamen hederifolium to water stress induced by different irrigation levels

Murat Yıldırım¹*, Arda Akcal² and Kenan Kaynas²

¹Department of Farm Structure and Irrigation, Canakkale Onsekiz Mart University, Turkey.

²Department of Horticulture, Canakkale Onsekiz Mart University, Turkey.

Accepted 11 August, 2015

Abstract

The purpose of this study was to examine the effects of different irrigation levels on morphological and physiological parameters of Cyclamen hederifolium. Irrigation applications was scheduled as 40% of the available water was depleted in the root zone in the full irrigation and intended to refill the root zone up to field capacity. In the deficit treatments, water was applied in the range of 75% (I.₇₅), 50% (I.₅₀) and 25% (I.₂₅) of the full irrigation. Deficit irrigation regimes reduced the applied water at the average rates of 17, 37 and 50%, respectively. Although the highest amount of applied water was in the I_1.0 treatment , deficit irrigation application of I.₅₀ (114 mm water applied) exibited good development on some morphological and physiological characters of C. hederifolium; leaf area index (LAI), water use effi-ciency, and also tuber development were the highest in the treatment of I.₅₀. Our results clearly indicate that more than 114 mm irrigation water is an excessive water application, adversely less than that amount has negative effects on the morphological and physiological parameters of the bulbs of C. hederifolium.

Key words: Cyclamen hederifolium, water deficit, corm production.

International Journal of Irrigation and Water Management ISSN 5423-5294 Vol. 2 (12), pp. 001-009, December, 2015. © International Scholars Journals

Full Length Research Paper

Performance assessment for irrigation water management: A case study in the Karacabey irrigation scheme in Turkey

Hayrettin Kuscu^1* Filiz Eren Bölüktepe² and Ali Osman Demir³

¹Department of Industrial Plants Cultivation and Evaluation, Mustafakemalpasa Vocational School, University of Uludag, 16500 Bursa, Turkey.

²Department of Business Management, Mustafakemalpasa Vocational School, University of Uludag, 16500 Bursa, Turkey.

³Department of Agricultural Structures and Irrigation, Faculty of Agriculture, University of Uludag, 16059 Gorukle, Bursa, Turkey.

Accepted 09 September, 2015

Abstract

The objective of this study is to assess the performance of irrigation water management of the Bursa– Karacabey irrigation scheme (KIS) located in the western Turkey. The study was carried out in two stages. In the first stage, performance of irrigation water management was assessed using two physical and three financial performance indicators for six years during the period 2002–2007. According to the results, the physical performance indicators, which are average irrigation ratio and relative water supply, were found to be 61% and 0.77, respectively. Nevertheless, the financial performance indicators, which are the effectiveness of fee collection, the financial self sufficiency of fees collected to cover management, operating and maintenance budgets, and the staffing number per unit area were found as average 103%, 0.94 and 0.003 persons/ha, respectively. In the second stage, the irrigation water management was tested and assessed by the Logit model taking farmers perceptions concerning satisfaction with taking irrigation service. The probability of the satisfaction in irrigation fee policy and maintenance of irrigation and drainage canals was significant at 0.01 and 0.05 levels, respectively. Most of participants (80%) who use water from the KIS have been satisfied with taking service from the Karacabey Water Users’ Association. According to the research results, it may be claim that the management with regard to physical performance was negative; on the other hand, the management with regard to financial performance and water user satisfaction was positive.

Key words: Irrigation management, performance indicators, water user association, logit model, farmer satisfaction.

International Journal of Irrigation and Water Management ISSN 5423-5294 Vol. 2 (11), pp. 001-004, November, 2015. © International Scholars Journals

Full Length Research Paper

Irrigation and nitrogen level affect lettuce yield in greenhouse condition

Bilal Acar¹*, Mustafa Paksoy², Önder Türkmen² and Musa Seymen²

¹Department of Farm Buildings and Irrigation, Faculty of Agriculture, University of Selcuk, Konya, Turkey.

²Department of Horticulture, Faculty of Agriculture, University of Selcuk, Konya, Turkey.

Accepted 12 July, 2015

Abstract

This study was conducted to investigate the effect of different irrigation and nitrogen levels on lettuce yield characteristics in greenhouse condition from December 2006 to March 2007. Irrigation levels of 100% of total class A pan (S1), 80% of total class A pan (S2), 60% of total class A pan (S3) and nitrogen levels of 0 kg ha^-1 (N1), 100 kg ha^-1 (N2), 200 kg ha^-1 (N3), and 300 kg ha^-1 (N4) were applied by drip system. Irrigation levels did not show any significant effect on head weight, marketable head weight, number of leaves, height of plants, head circle, root length, and root extent except core length and total soluble solid, TSS. The highest head and marketable head weight were found as 355.17 and 334.78 g in S1 application, respectively. Nitrogen levels had no significant effect on measured parameters. These values were the highest as 365.06 and 342.93 g in N3 application.

Key words: Lettuce, drip irrigation, nitrogen applications, greenhouse, head weight.

International Journal of Irrigation and Water Management ISSN 5423-5294 Vol. 2 (10), pp. 001-004, October, 2015. © International Scholars Journals

Full Length Research Paper

Effects of limited irrigation on root yield and quality of sugar beet (Beta vulgaris L.)

Mahmoodi R¹, Maralian, H.²* and Aghabarati, A³

¹Department of agriculture, Buali Sina University, Hamadan, Iran.

²Department of Plant Productions. Moghan Junior College of agriculture, University of Mohaghegh- Ardabili, Ardabil, Iran.

³Tarbiat Modares University, Tehran, Iran.

Accepted 24 October, 2014

Abstract

This field study was conducted in order to investigate the yield and quality of sugar beet cv zargan in relation to different irrigation regimes during 2005 at Ardabil conditions. The experimental design was a randomized complete block design with four replicates. In this experiment irrigation regimes were I₁ = Irrigation at 13.3 F.C (30% F.C), I_2b= Irrigation at 15.5 F.C (50% F.C), I₃ = Irrigation at 17.7 F.C (70% F.C) and I₄ = Irrigation at 19.9 F.C (90% F.C). Parameters such as root yield (t/ha), leaf yield (t/ha), sugar content (%), Molasses (%), pure sugar content (%), white sugar yield (t/ha), Na (mmol/100 g root), K (mmol/100 g root) were evaluated. Irrigation treatments had a significant effect on sugar yield and its quality. Potassium concentration was not significantly affected by irrigation treatments. Results of irrigation treatments showed that the optimum soil water content for root yield is 70% of field capacity with 78.5 t/ha. The minimum root yield (52.5 t/ha) was observed at 90% of field capacity. Irrigation at 30, 50 and 70% of field capacity (I_1, I₂ and I₃) had same effect on sugar content while sugar content decreased at 90% field capacity (I₄). When the available soil water content was at 70% of field capacity, maximum root yield and quality was observed.

Key word: Beta vulgaris, irrigation, root yield, sugar quality.

International Journal of Irrigation and Water Management ISSN 5423-5294 Vol. 2 (8), pp. 001-008, August, 2015. © International Scholars Journals

Full Length Research Paper

Soil moisture distribution pattern in Amaranthus cruentus field under drip irrigation system

Fasinmirin J. T. and A. M. Oguntuase

Department of Agricultural Engineering, Federal University of Technology, Akure, Ondo State, Nigeria.

Accepted 11 September, 2014

Abstract

The status, availability and distribution of moisture distribution within a crop’s root zone depths affect the yield and growth of crops. An experiment was carried out to determine the influence of three drip irrigation regimes on pattern of moisture distribution within the soil profile of Amaranthus cruentus field. Irrigations were carried out at 50 KPa (Low stress), 60 KPa (Medium stress) and 70 KPa (Severe stress) levels. The pattern of soil water extraction differed significantly among treatments (P<0.05). A. cruentus extracts water for its use depending on available moisture within depths of the root zone. The surface soil at 0.1 and 0.2 m depths, rapidly losses moisture at the peak of the dry season in treatment 70   KPa (severely stressed level). Soil hydraulic charge was high (-80.6 and -70.9 KPa) at crop emergence in the root zone of A. cruentus during the dry season experiment of 2005 and 2006 respectively. It however reduced to as low as -5.7 KPa at crop maturity (71 – 76 DOY) due to occasional rain showers experienced around the period of crop maturity. Relationship between soil hydraulic charge and soil moisture storage gave r² = 0.82 and standard deviation ± 1.19 at P < 0.05. The findings from this research may be useful at determining the appropriate moisture stress level at which irrigation is best carried out in vegetable field for optimum yield.

Keyword: Irrigation, moisture deficit, hydraulic charge, moisture storage, root zone.